baber/WOPTO huggingface dataset:
Patent GB-2059095-A (GB)
Title: Microscopes
IPC: G02B21/00
Filed: 1979-09-10
Abstract: A microscope is provided which is capable of measuring in X, Y and Z planes simultaneously. A projector D mounted on the microscope A provides a graticule image on the focal plane which is registered at a plane H with a reticule image of the microscope to indicate a datum or focussed position. <IMAGE>
Patent GB-2058046-A (GB)
Title: Novel furoindole compounds
IPC: C07D491/04
Filed: 1979-09-14
Abstract: The novel furoindole compounds of the formula   <IMAGE> wherein R<1> is hydrogen or lower alkyl having 1 - 3 carbon atoms, and R<2> is hydrogen, halogen, trifluoromethyl, methoxy or methyl, are useful as analgesic and anti-inflammatory agents.
Patent GB-2058429-A (GB)
Title: Automatic Sound-emitting Self- learning Toy
IPC: G09B5/06
Filed: 1979-09-14
Abstract: A self-learning toy emits the sound "yes" when a selected answer card 18 corresponds correctly with a question card 17, and "no" when the two do not so correspond. The answer card and the question card are provided with magnets 25A-D, 26A-D, the arrangement of which identifies a particular question and answer. A base unit is included on which the question and answer cards are placed and has a mechanism which is magnetically responsive to the identifying magnets of the cards to operate a tape recorder to play a message appropriate to the correct correspondence or otherwise of the cards. <IMAGE>
Patent GB-2060353-A (GB)
Title: Jewellery chains
IPC: C25D7/06
Filed: 1979-09-28
Abstract: Jewellery chain are thickened by electroforming to obtain fattened chain links thereof such that the distance between interlinked pivoting points of each chain link of the chain are reduced to make the chain denser in construction. The increased thickness of the chain enhances the range of subsequent processes such as pressing, swaging and the like, which may be applied to the chain, so making it possible to produce a wide range of chain designs. An apparatus particularly suitable for the electroforming process is disclosed. <IMAGE>
Patent GB-2032497-A (GB)
Title: Building Frames
IPC: E06B3/16
Filed: 1979-10-01
Abstract: A building frame, for a door or window, is made up from tubular elements, each incorporating two rolled metal strips joined by respective edge portions (6, 7). These are secured together by a rolled seam joint (8) and form flanges (2) projecting from a box section (1) formed by the main portions (3, 4) of the strips. The two strips can be identical, with the symmetrically opposed flanges performing different functions in the completed frame. The joint (8) can provide a shoulder to help retain a glazing bead (19) or a sealing strip (27). The configuration of the strips, particularly the edge portions, is such that the rolled seam is secure against being displaced under the influence of torsional forces. <IMAGE>
Patent GB-2037602-A (GB)
Title: Separating two immiscible liquid phases of different densities
IPC: B01D17/04
Filed: 1979-11-12
Abstract: A liquid comprising two immiscible liquid phases (e.g. hydrocarbon in water) is introduced continuously into a separating chamber through an inlet 26 which directs the liquid between two baffle walls 24 and 25 which are orientated obliquely to the inflow direction, the inlet 26 being opposite the lower wall 25. The separating chamber may be a half annular chamber defined between outer and inner cylindrical walls 22 and 23 and vertical partitions 27 and 39 in which case walls 24 and 25 are semi-frustoconical in shape. The light phase is removed via valved outlet 34 while the heavier phase still containing an emulsion of the light phase passes downwardly into a lower part annular chamber containing a plurality of half ring shaped coalescing fins 28. The liquid then flows through pipe 29 into a central outlet chamber from where the coalesced light phase is removed through outlet 33 and the heavier phase through outlet 32. <IMAGE>
Patent GB-2040596-A (GB)
Title: Linear actuator for magnetic transducing head drive
IPC: H02K41/035
Filed: 1979-12-04
Abstract: In a linear actuator for moving a magnetic transducer across a magnetic disc an annular magnetic flux-transmission means (52) is attached to one end face of the housing (50) and- a flux-transmission plate (60) is attached to the opposite end face of the housing to provide magnetic flux paths and prevent flux leakage from the housing so that the actuator can be placed in closer proximity to a disc and thus reduce the size of the disc drive package. The actuator includes a generally cylindrical housing (50) with magnets attached to the inside surface of the housing and a cylindrical bobbin (66) having a voice coil 68 wound on its periphery. The annular flux transmission plate (52) has integral iron fingers (62) which fit inside slots (64) in the bobbin, with running clearance. <IMAGE>
Patent GB-2043493-A (GB)
Title: Apparatus for separating impurities from stock
IPC: D21B1/34
Filed: 1980-02-15
Abstract: In known stock purifying apparatus centrifugal force is utilized to separate out the impurities, the impure stock being introduced into the centrifuging chamber of the apparatus at the radially outermost zone and thus requiring to be at a suitable pressure to counter centrifugal forces. In the present apparatus the impure stock is introduced via an inlet (16) in the form of a scroll (30), the scroll leading into the centrifuging chamber (10) at the axially central region thereof where the lowest pressure prevails. The scroll imparts a spiral motion to the stock so that it easily merges with the stock which is being centrifuged by an impeller (20) in an end wall (14) opposite the scroll inlet. Due to the introduction of the impure stock in a low pressure region, running costs are reduced as the impure stock does not require pressurising to the extent required in the relevant prior art. <IMAGE>
Patent GB-2045457-A (GB)
Title: Visual faculty testing apparatus
IPC: A61B3/06
Filed: 1980-03-03
Abstract: Visual faculty testing apparatus is proposed to facilitate contrast sensitivity assessment. Existing procedures are limited and involve the presentation to a subject of a target of which the overall contrast is varied to determine the minimum level at which it is detectable. The present apparatus differs by presenting a target array of light and dark areas alternating in one direction, and with the luminance of at least one set of areas varying towards that of the other set in another direction, the apparatus including control means affording adjustment of the rate of this luminance variation whereby points of minimum contrast detection can be moved across the target. The amount of adjustment for each movement to prescribed subjectively judged positions or target patterns then gives a comparative basis for contrast sensitivity. The present apparatus in a preferred form presents a single target with progressively varying spacial frequency in the one direction, and by the provision of a plurality of controls for luminance variation rate adjustment in respective zones across the target in said one direction.
Patent GB-2044144-A (GB)
Title: Multi-spindle machine tool
IPC: B23Q5/14
Filed: 1980-03-03
Abstract: A multi-spindle machine tool, illustrated in vertical configuration has a drive motor 3 and gearbox 2 disposed beyond the upper ends of the spindles 7, respective drive shafts 24 for the spindles extending from the gearbox and being drivingly connected to the spindles at or near their other ends. The gearbox preferably contains respective gear transmission trains 19a, 19b, 20a, 20b, 21a and 21b for the spindles, at least some of the gears in each gear train being removable and interchangeable with other gears in order to effect a variation in drive ratio. <IMAGE>
Patent GB-2052118-A (GB)
Title: Disc Cache Subsystem
IPC: G06F12/0866
Filed: 1980-06-03
Abstract: Data memory sub-system for connection to a data processing system includes a magnetic disc store 14, and a disc controller 20 incorporating a high speed semiconductor cache buffer 16. The memory operates in a broadly conventional manner. The cache may be divided into two levels. The first level may be arranged to store complete disc tracks. The second (slower) level may be formed of CCDs. The controller also includes a microprocessor arranged to manage the stores. <IMAGE>
Patent GB-2052518-A (GB)
Title: Materials formed of collagen and gelatin
IPC: C14C13/00
Filed: 1980-06-11
Abstract: A material formed of collagen and gelatin may be produced by admixing gelatin with an aqueous dispersion of collagen of an isoelectric point not exceeding 6.2 in an amount of 0.05 to 2 parts by weight of gelatin per part by weight of collagen; adjusting the pH of the mixture to from 3 to 3.5 by the addition of an aqueous acid solution; and forming said material therefrom. The mechanical strength of such a material, in particular its tear strength, is higher than that of a corresponding material made from collagen only. The collagen may be prepared by first cross-linking or acetylating a hide to reduce the isoelectric point of the original collagen in said hide and then obtaining collagen fibres from the thus-treated hide. Electrodeposition and extrusion techniques can be employed to produce the material, which can be used as an outer skin for foods. The material, in aqueous dispersion, may be treated by application of an electric current.
Patent GB-2053709-A (GB)
Title: An installation and process for the filtering of beer
IPC: B01D37/02
Filed: 1980-07-04
Abstract: Prior to filtering, a multiple sheet filter is prepared by circulating water under carbon dioxide pressure to remove residual air, then two successive layers of kieselguhr filter aid are applied to the filter, all at specific flow rates. The beer is then filtered, with a further supply of kieselguhr being added continuously thereto. After filtering, residual beer is ejected from the filter by supplying water.
Patent GB-2081809-A (GB)
Title: Direct Fuel Injection Internal Combustion Engine
IPC: F02B29/02
Filed: 1980-08-14
Abstract: The area of the two intake ports 2 and 3 is 1.1 to 1.7 times the area of the exhaust port 4 and the fuel injector receiving bore 11 has an axis inclined to and spaced from the cylinder axis 0 at the base of the cylinder head 1. Relationships between the diameters of the intake and exhaust ports and the cylinder are given in the specification. A water chamber 20 between the walls defining the intake and exhaust passages and the bore 11 receives water from the cylinder jacket through a drilled bore 23 and a further drilled bore (24), Figure 6 (not shown), extends through a wall 26 between the bore 11 and the exhaust passage (18) adjacent the base of the cylinder head. <IMAGE>
Patent GB-2060121-A (GB)
Title: Inflatable Sealing Devices
IPC: F02C7/00
Filed: 1980-10-01
Abstract: A jet engine air intake duct is temporarily sealed, for the period that the aircraft is grounded, by a sealing device which comprises a ring-like inflatable portion 1 of natural outer shape corresponding to the internal cross-section of the air intake duct where it is required to effect the seal and having its central aperture 7 sealed over (by a membrane 6). The sealing device is put in place in relatively deflated condition and then inflated so that its peripheral wall expands outwards into sealing and gripping contact with the wall of the air intake duct. The device may include a pump 9 for inflation and it may be formed of pieces of sheet material joined together. The circumferential wall may be relatively stretchable. <IMAGE>
Patent GB-2066969-A (GB)
Title: Measurement of power in A.C. circuits
IPC: G01R21/133
Filed: 1981-01-09
Abstract: An a.c. power measurement circuit includes a current transducer (16, 16a), a circuit (12, 13, 14) which detects the instant when the voltage is maximum by detecting the zero crossings in an a.c. waveform 90 DEG  out of phase with the voltage and a sampling circuit (18, 19, 20) which samples the output of the current transducer at the instant of the voltage peak. A digital to analog converter (22) is used as a multiplier to derive a power signal. Alternatively a similar converter (20) used in the sampling circuit may be multiplex operated to drive the power signal. <IMAGE>
Patent GB-2073440-A (GB)
Title: Optical cable
IPC: G02B6/44
Filed: 1981-03-26
Abstract: A cable (1) including optical fibres (2) and non-metallic other members, such as strength members (3, 4) and sheathing (6) is difficult to locate when buried. Spaced metallic parts (7) are therefore provided in or on the cable sheathing (6) to facilitate detection of the cable by a conventional cable locating device. The metallic parts may also consist of rings, or gapped rings, encircling the cable. <IMAGE>
Patent GB-2076372-A (GB)
Title: Guiding and stacking sheets
IPC: B65H29/52
Filed: 1981-04-10
Abstract: Sheets of paper or like material are delivered to a collecting box (1) which is provided with at least one hold-down member (10, 10', 10'') arranged at the inlet side of the collecting box for diverting the sheets downwardly. The end of the hold down member is a flexible wire (11, 11', 11'') projecting over the edge of guide plate (2) towards the bottom of the collecting box. The sheets are thereby deposited rapidly without remaining raised on an air cushion and do not obstruct the feed of succeeding sheets. <IMAGE>
Patent GB-2072477-A (GB)
Title: Box for domestic animal excrements
IPC: A01K1/01
Filed: 1980-08-12
Abstract: Box for excrements for domestic animals, such as cats, dogs, mice, hamsters, birds, etc., must be arranged so that it may be completely emptied without requiring subsequent cleaning. This is provided by coating at least the interior of the box with one or a plurality of removable sheets. The box must be designed to received solid and/or liquid excrements. The illustrated box (1) is provided with a sheet (2) which covers the upper edges (4) on the periphery of the box. A plurality of sheets may be arranged in overlying layers. A plurality of sheets may be assembled into a package.
Patent GB-2077035-A (GB)
Title: Compressive semiconductor mount
IPC: H01L23/48
Filed: 1981-04-21
Abstract: A semiconductor assembly is arranged so that the pressure applied between the contacts and the semiconductor body increases with temperature. The assembly includes a semiconductor device 1 clamped between electrically conducting heat sinks 4, 5 and enclosed in a rigid frame 8. The heat sinks are electrically insulated from each other and from the rigid frame by an insulating bond which secures these components together. Variations in compressive pressure holding the heat sinks in facing contact with the semiconductor device are provided by thermally responsive elements 15 whereby increases in temperature will expand the thermally responsive elements to increase compression forces on the assembly of heat sinks and, semiconductor devices. In an alternative arrangement the materials of the heat sinks (Al) and frame (Cu) are selected so that the desired increase in pressure may be achieved. The arrangement may be assembled by cooling the semiconductor device and heat sinks to shrink them before insertion in the frame. <IMAGE>
Patent GB-2097654-A (GB)
Title: Removable bottle holder
IPC: A47G19/12
Filed: 1981-04-22
Abstract: There is disclosed a removable holder (10) for use with a bottle e.g. a milk bottle having a formations projecting laterally from the wall of the bottle at or near the mouth of the bottle, the holder (10) having a shape generally conforming with the shape of the bottle so as to be capable of being slid over the bottle from the mouth end of the latter, and being open at each end (11,12). The holder (10) is movable into snap-fitting engagement with the formations on the bottle so as to lock the holder and the bottle together for normal use. The holder is preferably provided with a lid (18) to seal the bottle, once opened, and the holder presents a more acceptable appearance to a combined bottle and holder, thereby rendering it suitable for use at table without having to decant the bottle contents into another container. <IMAGE>
Patent GB-2078237-A (GB)
Title: Suspension polymerization of vinyl chloride
IPC: C08F2/18
Filed: 1981-06-12
Abstract: The productivity of the suspension polymerization of vinyl chloride in an aqueous medium, especially in a large polymerization reactor, is improved by shortening the time taken for completing polymerization run. In this method, the polymerization initiator is dissolved in the monomer to form a uniform mixture and the mixture is introduced into the polymerization reactor simultaneously with pre-heated water to form a hot polymerization mixture in the reactor at a temperature substantially equal to the prescribed polymerization temperature so that the time otherwise necessary for the temperature elevation of the cold polymerization mixture to the prescribed polymerization temperature can be mostly saved.
Patent GB-2105028-A (GB)
Title: Boiler feed contamination monitor
Inventor: PITT GILLIES DAVID
IPC: G01N33/18
Filed: 1981-08-27
Abstract: Contamination, particularly oil in water, is detected by passing the water through a cell (1) across which a laser beam is directed from a window (3) to a window (6) and to a direct detector (5). Oil droplets in the water cause scattering of the laser beam to another window (9) at an angle to the laser beam, and thence to a scatter detector (8). From the outputs of the detectors (5, 8) an output signal related to the contaminant (oil) level in the water is obtained. The output signal is applied to a sample valve trigger (16) circuit which is such as to actuate a valve to obtain a sample of the water when a predetermined contamination level is exceeded. The output can also be applied to a chart recorder (14) and a direct contamination-reading instrument (15) if desired. Thus contamination levels are monitored "on line" with provision for confirmatory chemical analysis when predetermined contamination levels are exceeded. <IMAGE>
Patent GB-2085884-A (GB)
Title: Crystals of beta -nicotinamide- adenine-dinucleotide and process for preparing the same
IPC: C07H19/207
Filed: 1981-10-07
Abstract: Novel highly pure and stable crystals of  beta -nicotinamide-adenine- dinucleotide tetrahydrate (NAD) which is triclinic system and has a space group of P1 or P1 and lattice constants: a = 8.861  ANGSTROM , b = 11.181  ANGSTROM , c = 8.630  ANGSTROM , alpha  = 90.82 DEG ,  beta = 103.40 DEG  and  gamma  = 109.71 DEG  is prepared by cooling a 20 to 60 w/v % aqueous solution of amorphous NAD, which has preferably been treated with a porous weakly basic anion exchange resin to remove impurities, at a temperature of 0 DEG to 20 DEG C. When the crystalline NAD is added to the aqueous solution as seeds, the desired high pure crystalline NAD is prepared without conducting the treatment of amorphous NAD with the porous weakly basic anion exchange resin. A high pure amorphous NAD is obtained from the crystalline NAD by dissolving the crystalline NAD in water and subjecting the aqueous solution to freeze drying or precipitation with a solvent.
Patent GB-2108860-A (GB)
Title: Catalyst structure
Inventor: INABA HIDEYA
IPC: B01J37/02
Filed: 1981-10-31
Abstract: A catalyst structure comprises a shape-retaining metal core of a desired shape, a particle holding layer attached to the core and made of a glass fibre product and catalyst particles held in the layer. Preferably two layers of glass fibre product are provided comprising a particle holding layer made from a glass fibre product having a relatively large number of filament-to-filament interstices and a particle release-preventing layer attached to the particle holding layer and made of a glass fibre product having a relatively small number of filament-to-filament interstices.
Patent GB-2112306-A (GB)
Title: Temperature or pressure sensing element
Inventor: NELSON CHARLES FREDERICK
IPC: G01K5/32
Filed: 1981-12-08
Abstract: A temperature or pressure sensing element of the kind having an expansible capsule or bellows (1) connected a capillary tube (2) by way of an hermetic seal is fabricated by sealing the capillary tube (2), which may be of aluminium, stainless steel, brass or copper, to the bellows or capsule (1) with a synthetic resin bonded joint (14). The resin joint also serves to connect the capillary tube (2) to a rigid support plate (9).
Patent GB-2098578-A (GB)
Title: An industrial production system served by a plurality of operating arms and controlled by a computer system
IPC: B23P19/04
Filed: 1981-12-11
Abstract: An industrial production system including a plurality of operating arms (2) and controlled by a computer system (1) is described. Each of the arms (2) comprises a support structure for a gripping end (3), this structure comprising a single body (4) for supporting and guiding a single column (5). This body (4) is movable with respect to a support element (6) of the arm, such support element being fixable on a fixed body (7). The structure further includes means (13, 15; 22, 24; 25, 27) for rectilinear displacement of the end (3) with respect to the support element (6) along the directions (x, y, z) of a set of three orthogonal cartesian axes. <IMAGE>
Patent GB-2089999-A (GB)
Title: Non-invasive haemodynamic performance assessment
IPC: G06F17/00
Filed: 1981-12-21
Abstract: For non-invasively measuring and assessing patient haemodynamic performance, two sensor systems are used as the raw data inputs. The first sensor system is an ear densitometer 12 which photoelectrically records the instantaneous amount of blood within the blood vessels of the ear. The second sensor system is a standard electrocardiogram on lead 19. The densitometer and electrocardiogram signals are conditioned and processed to permit measurement of specific performance parameters. These are pre-ejection phase, PEP; left ventricular ejection time, LVET; and PEP/LVET. The measured quantities are displayed on a cathode ray tube 28 in a variety of formats upon operator request and recorded by a printer 30. <IMAGE>
Patent GB-2115352-A (GB)
Title: Data input device with tactile feedback
Inventor: MCNULTY JOHN ANTHONY
IPC: G09B21/00
Filed: 1982-02-18
Abstract: A keyboard adapted for use as a data entry device in a data- or word-processing system, having keys which are each provided with respective active transducer devices, such as piezo-electric transducers, which can transmit a tactile feedback signal to the fingers of the operator. The transducers are activated either automatically whenever a respective key is pressed, or under the control of a software program which detects whether the keys have been actuated in an intended sequence, and then activates the transducers, or activates the transducers in advance to provide prompts to the operator to signal keys which are intended to be actuated. <IMAGE>
Patent GB-2098028-A (GB)
Title: Line circuit
IPC: H04M19/00
Filed: 1982-04-16
Abstract: To be suitable for implementation in integrated circuit form, it is desirable for a telephone line circuit which is insensitive to interfering voltages to avoid the use of isolating transformers or capacitors. In addition it should be able to supply a minimum line current for even the longest lines contemplated, and be able to supply the relatively high-level ringing current. To achieve the above desiderata, the feed circuit includes two direct voltage controlled alternating voltage sources (Q2, Q2'), each having its output connected to one of the line wires (a, b) via a resistor (Z2, Z2'). These devices are AC sources as "seen" by the line wire and provide amplification for speech outgoing to the line. Each such source is direct voltage controlled in such a way that the direct voltage level of its speech wire equals that of the output of the alternating voltage source (Q2, Q2'). The direct voltage supply for the line circuit includes two controllable direct voltage sources (Q1, Q1') one per line wire, the inputs of which are each connected to the appropriate linewire via a high pass filter whose pole lies at the lower end of the speech frequency band. <IMAGE>